Oilpan: Allocate all EventTarget derived types on the manged heap.

Source/modules/mediastream/RTCPeerConnection.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 38 matching lines @@
 class MediaStreamTrack;
 class RTCConfiguration;
 class RTCDTMFSender;
 class RTCDataChannel;
 class RTCErrorCallback;
 class RTCSessionDescription;
 class RTCSessionDescriptionCallback;
 class RTCStatsCallback;
 class VoidCallback;
 
-class RTCPeerConnection FINAL : public RefCounted<RTCPeerConnection>, public ScriptWrappable, public blink::WebRTCPeerConnectionHandlerClient, public EventTargetWithInlineData, public ActiveDOMObject {
+class RTCPeerConnection FINAL : public RefCountedWillBeRefCountedGarbageCollected<RTCPeerConnection>, public ScriptWrappable, public blink::WebRTCPeerConnectionHandlerClient, public EventTargetWithInlineData, public ActiveDOMObject {
     REFCOUNTED_EVENT_TARGET(RTCPeerConnection);
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(RTCPeerConnection);
 public:
     static PassRefPtr<RTCPeerConnection> create(ExecutionContext*, const Dictionary& rtcConfiguration, const Dictionary& mediaConstraints, ExceptionState&);
     virtual ~RTCPeerConnection();
 
     void createOffer(PassOwnPtr<RTCSessionDescriptionCallback>, PassOwnPtr<RTCErrorCallback>, const Dictionary& mediaConstraints, ExceptionState&);
 
     void createAnswer(PassOwnPtr<RTCSessionDescriptionCallback>, PassOwnPtr<RTCErrorCallback>, const Dictionary& mediaConstraints, ExceptionState&);
 
     void setLocalDescription(PassRefPtr<RTCSessionDescription>, PassOwnPtr<VoidCallback>, PassOwnPtr<RTCErrorCallback>, ExceptionState&);
     PassRefPtr<RTCSessionDescription> localDescription(ExceptionState&);
@@ skipping 54 matching lines @@
     // EventTarget
     virtual const AtomicString& interfaceName() const OVERRIDE;
     virtual ExecutionContext* executionContext() const OVERRIDE;
 
     // ActiveDOMObject
     virtual void suspend() OVERRIDE;
     virtual void resume() OVERRIDE;
     virtual void stop() OVERRIDE;
     virtual bool hasPendingActivity() const OVERRIDE { return !m_stopped; }
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 private:
     RTCPeerConnection(ExecutionContext*, PassRefPtr<RTCConfiguration>, blink::WebMediaConstraints, ExceptionState&);
 
     static PassRefPtr<RTCConfiguration> parseConfiguration(const Dictionary& configuration, ExceptionState&);
     void scheduleDispatchEvent(PassRefPtrWillBeRawPtr<Event>);
     void dispatchScheduledEvent();
     bool hasLocalStreamWithTrackId(const String& trackId);
 
     void changeSignalingState(blink::WebRTCPeerConnectionHandlerClient::SignalingState);
     void changeIceGatheringState(blink::WebRTCPeerConnectionHandlerClient::ICEGatheringState);
     void changeIceConnectionState(blink::WebRTCPeerConnectionHandlerClient::ICEConnectionState);
 
     SignalingState m_signalingState;
     ICEGatheringState m_iceGatheringState;
     ICEConnectionState m_iceConnectionState;
 
     MediaStreamVector m_localStreams;
     MediaStreamVector m_remoteStreams;
 
     Vector<RefPtr<RTCDataChannel> > m_dataChannels;
 
     OwnPtr<blink::WebRTCPeerConnectionHandler> m_peerHandler;
 
     AsyncMethodRunner<RTCPeerConnection> m_dispatchScheduledEventRunner;
-    WillBePersistentHeapVector<RefPtrWillBeMember<Event> > m_scheduledEvents;
+    WillBeHeapVector<RefPtrWillBeMember<Event> > m_scheduledEvents;
 
     bool m_stopped;
 };
 
 } // namespace WebCore
 
 #endif // RTCPeerConnection_h